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29 ELECTRICAL ENGINEERING
29.020 Electrical engineering in general
29.030 Magnetic materials
29.035 Insulating materials
29.035.01 Insulating materials in general
29.035.10 Paper and board insulating materials
29.035.20 Plastics and rubber insulating materials
29.035.30 Glass and ceramic insulating materials
29.035.50 Mica based materials
29.035.60 Varnished fabrics
29.035.99 Other insulating materials
29.040 Insulating fluids
29.040.01 Insulating fluids in general
29.040.10 Insulating oils
29.040.20 Insulating gases
29.040.99 Other insulating fluids
29.045 Semiconducting materials
29.050 Conducting materials
29.060 Electrical wires and cables
29.060.01 Electrical wires and cables in general
29.060.10 Wires
29.060.20 Cables
29.080 Insulation
29.080.01 Electrical insulation in general
29.080.10 Insulators
29.080.20 Bushings
29.080.30 Insulation systems
29.080.99 Other standards related to insulation
29.100 Components for electrical equipment
29.100.01 Components for electrical equipment in general
29.100.10 Magnetic components
29.100.20 Electric and electromechanical components
29.100.99 Other components for electrical equipment
29.120 Electrical accessories
29.120.01 Electrical accessories in general
29.120.10 Conduits for electrical purposes
29.120.20 Connecting devices
29.120.30 Plugs
29.120.40 Switches
29.120.50 Fuses and other overcurrent protection devices
29.120.70 Relays
29.120.99 Other electrical accessories
29.130 Switchgear and controlgear
29.130.01 Switchgear and controlgear in general
29.130.10 High voltage switchgear and controlgear
29.130.20 Low voltage switchgear and controlgear
29.130.99 Other switchgear and controlgear
29.140 Lamps and related equipment
29.140.01 Lamps in general
29.140.10 Lamp caps and holders
29.140.20 Incandescent lamps
29.140.30 Fluorescent lamps. Discharge lamps
29.140.40 Luminaires
29.140.50 Lighting installation systems
29.140.99 Other standards related to lamps
29.160 Rotating machinery
29.160.01 Rotating machinery in general
29.160.10 Components for rotating machines
29.160.20 Generators
29.160.30 Motors
29.160.40 Generating sets
29.160.99 Other standards related to rotating machinery
29.180 Transformers. Reactors
29.200 Rectifiers. Converters. Stabilized power supply
29.220 Galvanic cells and batteries
29.220.01 Galvanic cells and batteries in general
29.220.10 Primary cells and batteries
29.220.20 Acid secondary cells and batteries
29.220.30 Alkaline secondary cells and batteries
29.220.99 Other cells and batteries
29.240 Power transmission and distribution networks
29.240.01 Power transmission and distribution networks in general
29.240.10 Substations. Surge arresters
29.240.20 Power transmission and distribution lines
29.240.30 Control equipment for electric power systems
29.240.99 Other equipment related to power transmission and distribution networks
29.260 Electrical equipment for working in special conditions
29.260.01 Electrical equipment for working in special conditions in general
29.260.10 Electrical installations for outdoor use
29.260.20 Electrical apparatus for explosive atmospheres
29.260.99 Other electrical equipment for working in special conditions
29.280 Electric traction equipment